Question

If the area to be covered for TV telecast is doubled the height of transmitting antenna (TV tower) will have to be –

• A. Doubled
• B. Halved
• C. Quadrupled
• D. Kept unchanged

Answer 1

Answer: (A)

Doubled

Answer 2

Area covered by TV signals = pd² , d = $\sqrt{2Rh}$

where, R is the radius of the earth and h is height of antenna. $\begin{matrix} A \propto h \end{matrix}$.